/*-
 * #%L
 * rapidoid-commons
 * %%
 * Copyright (C) 2014 - 2018 Nikolche Mihajlovski and contributors
 * %%
 * Licensed under the Apache License, Version 2.0 (the "License");
 * you may not use this file except in compliance with the License.
 * You may obtain a copy of the License at
 *
 *      http://www.apache.org/licenses/LICENSE-2.0
 *
 * Unless required by applicable law or agreed to in writing, software
 * distributed under the License is distributed on an "AS IS" BASIS,
 * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
 * See the License for the specific language governing permissions and
 * limitations under the License.
 * #L%
 */

package org.rapidoid.util;

import org.rapidoid.RapidoidThing;
import org.rapidoid.annotation.Authors;
import org.rapidoid.annotation.Since;
import org.rapidoid.u.U;

import java.util.concurrent.CancellationException;
import java.util.concurrent.CountDownLatch;
import java.util.concurrent.TimeUnit;
import java.util.concurrent.atomic.AtomicBoolean;

@Authors("Nikolche Mihajlovski")
@Since("5.3.0")
public class Wait extends RapidoidThing {

	public static void notification(Object obj) {
		try {
			synchronized (obj) {
				obj.wait();
			}

		} catch (InterruptedException e) {
			throw new CancellationException();
		}
	}

	public static void on(CountDownLatch latch) {
		try {
			latch.await();
		} catch (InterruptedException e) {
			throw new CancellationException();
		}
	}

	public static void on(CountDownLatch latch, long timeout, TimeUnit unit) {
		try {
			latch.await(timeout, unit);
		} catch (InterruptedException e) {
			throw new CancellationException();
		}
	}

	public static void until(AtomicBoolean condition) {
		while (!condition.get()) {
			U.sleep(10);
		}
	}

}
